Text: Fixed layouting of wrapped-text block skipping successive empty…

… lines. (ocornut#5720, ocornut#5919)

Regression in the bd96f6e fix

docs/CHANGELOG.txt

@@ -37,6 +37,8 @@ HOW TO UPDATE?
 
 All changes:
 
+- Text: Fixed layouting of wrapped-text block skipping successive empty lines,
+  regression from the fix in 1.89.2. (#5720, #5919)
 - Text: Fix clipping of single-character "..." ellipsis (U+2026 or U+0085) when font
   is scaled. Scaling wasn't taken into account, leading to ellipsis character straying
   slightly out of its expected boundaries. (#2775)

imgui.h

@@ -23,7 +23,7 @@
 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM > 12345')
 #define IMGUI_VERSION               "1.89.3 WIP"
-#define IMGUI_VERSION_NUM           18921
+#define IMGUI_VERSION_NUM           18922
 #define IMGUI_HAS_TABLE
 
 /*

imgui_draw.cpp

@@ -3573,18 +3573,19 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, Im
         while (y + line_height < clip_rect.y && s < text_end)
         {
             const char* line_end = (const char*)memchr(s, '\n', text_end - s);
-            const char* line_next = line_end ? line_end + 1 : text_end;
+            if (!line_end)
+                line_end = text_end;
             if (word_wrap_enabled)
             {
                 // FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPositionA().
                 // If the specs for CalcWordWrapPositionA() were reworked to optionally return on \n we could combine both.
                 // However it is still better than nothing performing the fast-forward!
-                s = CalcWordWrapPositionA(scale, s, line_next, wrap_width);
+                s = CalcWordWrapPositionA(scale, s, line_end, wrap_width);
                 s = CalcWordWrapNextLineStartA(s, text_end);
             }
             else
             {
-                s = line_next;
+                s = line_end + 1;
             }
             y += line_height;
         }